CN116557180B - Automatic temperature control fuel preheating system for railway internal combustion engine - Google Patents
Automatic temperature control fuel preheating system for railway internal combustion engine Download PDFInfo
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- CN116557180B CN116557180B CN202310467381.3A CN202310467381A CN116557180B CN 116557180 B CN116557180 B CN 116557180B CN 202310467381 A CN202310467381 A CN 202310467381A CN 116557180 B CN116557180 B CN 116557180B
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- fuel
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- preheater
- control system
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- 239000000446 fuel Substances 0.000 title claims abstract description 87
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 25
- 239000003921 oil Substances 0.000 claims abstract description 75
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 238000012544 monitoring process Methods 0.000 claims abstract description 38
- 239000000295 fuel oil Substances 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000002828 fuel tank Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 10
- 230000003137 locomotive effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000002283 diesel fuel Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/16—Other apparatus for heating fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention is suitable for the field of internal combustion engines, and provides an automatic temperature control fuel preheating system for a railway internal combustion engine, which comprises a fuel preheater, a control unit and a control unit, wherein the fuel preheater is used for heating fuel passing through the fuel preheater; the oil monitoring module comprises a first temperature sensor arranged at the outlet end of the fuel preheater; the PLC industrial control system is used for collecting monitoring information of the oil monitoring module, carrying out data processing on the monitoring information, converting the monitoring information into regulation and control data, and regulating the heating temperature of the fuel preheater through the regulation and control data; the PLC industrial control system is also used for starting and stopping the fuel oil preheater; the thermometer is used for displaying temperature data monitored by the sensor, so that the temperature of oil liquid at different positions can be monitored according to the temperature sensor and uploaded to the PLC industrial control system, and the PLC industrial control system can adjust the working condition of the fuel oil engine preheater through the obtained monitoring information.
Description
Technical Field
The invention relates to the field of internal combustion engines, in particular to an automatic temperature control fuel preheating system for a railway internal combustion engine.
Background
The existing internal combustion engine is generally used for bearing the tasks of coal, container cargo transportation and shunting operation, and the locomotive needs 0# diesel oil to be replaced with-10 # diesel oil in winter (the end of 11 months to the beginning of 3 months in the next year). The price of 0# diesel is about 1\4 lower than that of-10 # diesel through statistics. And the locomotive consumes about 25 tons of oil per month. If the No. 0 diesel oil can be used in the whole winter, a large amount of fuel cost can be saved for enterprises, the exhaust emission of locomotives in winter can be reduced, and the atmospheric pollution is reduced.
In the prior art, a fuel engine preheater specially used for heating fuel is arranged in a diesel engine unit and is used for heating the fuel entering the engine so that the heated fuel reaches a proper working temperature. However, the heating temperature of the fuel oil engine preheater is fixed, and the heating temperature of the fuel oil engine preheater cannot be adjusted in real time according to the change of oil. Meanwhile, the existing diesel engine unit is not provided with a monitoring system for monitoring the preheater of the fuel engine in real time.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects, the invention aims to provide an automatic temperature control fuel preheating system for a railway internal combustion engine, which can monitor the temperature of oil liquid at different positions according to a temperature sensor and upload the temperature to a PLC industrial control system, and the PLC industrial control system adjusts the working condition of a fuel engine preheater according to the obtained monitoring information.
In order to achieve the above object, the present invention provides an automatic temperature control fuel preheating system for a railway internal combustion engine, comprising a fuel preheater for heating fuel passing through the inside thereof; the oil monitoring module comprises a first temperature sensor arranged at the outlet end of the fuel preheater; the PLC industrial control system is used for collecting monitoring information of the oil monitoring module, carrying out data processing on the monitoring information, converting the monitoring information into regulation and control data, and regulating the heating temperature of the fuel preheater through the regulation and control data; the PLC industrial control system is also used for starting and stopping the fuel oil preheater; a thermometer for displaying temperature data monitored by the sensor.
According to the automatic temperature control fuel preheating system for the railway internal combustion engine, the oil monitoring module further comprises a second temperature sensor arranged at the outlet of the oil tank and a third temperature sensor arranged at the outlet of the oil return pipe.
The automatic temperature control fuel preheating system for the railway internal combustion engine is characterized in that the fuel preheating system is positioned in the fuel preheating stateWhen the heater is started to work, the second temperature sensor acquires the actual temperature mu of the oil supplied from the oil tank 1 The PLC industrial control system controls the actual temperature mu 1 And a first standard temperature mu arranged in the interior of the heat exchanger 2 Comparing; wherein 30 DEG < mu 1 Less than or equal to 40 degrees; when mu 1 ＜μ 2 When the fuel oil preheater is started, the PLC industrial control system controls the fuel oil preheater to be started; mu, and mu 1 ≥μ 2 And when the fuel oil preheater is stopped, the PLC industrial control system controls the fuel oil preheater to stop.
The automatic temperature control fuel preheating system for the railway internal combustion engine according to the invention has the following structure that when mu is equal to mu 1 ＜μ 2 When the PLC industrial control system obtains the second standard temperature mu arranged in the PLC industrial control system 3 And the obtained actual temperature mu 1 Comparison is made, wherein μ 3 ＜μ 2 The method comprises the steps of carrying out a first treatment on the surface of the When mu 3 ＜μ 1 ＜μ 2 When the fuel oil preheater is in a low-power heating state, the PLC industrial control system controls the fuel oil preheater to enter a low-power heating state, mu Adding ＝μ 1 +△μ，△μ＝2(μ 2 -μ 1 ) The method comprises the steps of carrying out a first treatment on the surface of the When mu 1 ＜μ 3 When the fuel oil preheating device is in a high-power heating state, the PLC industrial control system controls the fuel oil preheating device to enter a high-power heating state, mu Adding ＝|arctanμ 1 I (I); wherein mu Adding Indicating the internal heating temperature of the fuel preheater.
According to the automatic temperature control fuel preheating system for the railway internal combustion engine, the third temperature sensor obtains the return oil temperature mu in the return oil pipe 4 The second temperature sensor obtains the temperature mu of the oil liquid heated by the fuel preheater 5 The PLC industrial control system calculates the oil temperature release efficiency through the following formula and compares the oil temperature release efficiency with a first preset temperature release comparison value mu arranged in the oil temperature release efficiency Ratio of Comparison is performed: mu (mu) Put and put ＝μ 5 -μ 4 The method comprises the steps of carrying out a first treatment on the surface of the When mu Put and put ＞μ Ratio of When the fuel oil preheating device is in a heating state, the PLC industrial control system controls the fuel oil preheating device to keep an original heating state; when mu Put and put ≤μ Ratio of When the temperature of the internal heating temperature mu of the fuel oil preheater is corrected again by the PLC industrial control system Adding 。
The PL is an automatic temperature control fuel preheating system for a railway internal combustion engine according to the present inventionThe C industrial control system heats the temperature mu in the fuel preheater by the following formula Adding And (3) correcting: mu (mu) Add' s ＝μ Adding X beta; wherein β= (μ) 5 -μ 4 )/μ 4 。
The invention provides an automatic temperature control fuel preheating system for a railway internal combustion engine, which comprises a fuel preheater, a temperature control device and a temperature control device, wherein the fuel preheater is used for heating fuel passing through the interior of the fuel preheater; the fuel preheater is of an existing structure and is one of the constituent members of an existing engine assembly; the engine assembly comprises a fuel tank, a coarse filter, a fuel preheater, a fine filter, an oil injection pump and a diesel engine which are sequentially connected through pipelines; the oil monitoring module comprises a first temperature sensor arranged at the outlet end of the fuel preheater, a second temperature sensor arranged at the outlet of the fuel tank and a third temperature sensor arranged at the outlet of the oil return pipe. The second temperature sensor is used for monitoring the actual temperature of the oil liquid discharged from the oil tank; the first temperature sensor is used for monitoring the temperature of the oil liquid heated by the fuel preheater; and the third temperature sensor acquires the oil return temperature in the oil return pipe. The industrial control system is used for collecting monitoring information of the oil monitoring module, carrying out data processing on the monitoring information, converting the monitoring information into regulation and control data, and regulating the heating temperature of the fuel preheater through the regulation and control data; the industrial control system is also used for starting and stopping the fuel preheater. The thermometer is arranged in the cab of the locomotive consist and used for displaying temperature data monitored by the first temperature sensor, the second temperature sensor and the third temperature sensor, so that a driver can conveniently and manually regulate and control the fuel preheater. According to the invention, the temperature of the oil liquid at different positions can be monitored according to the temperature sensor and uploaded to the PLC industrial control system, and the PLC industrial control system adjusts the working condition of the fuel oil engine preheater according to the obtained monitoring information.
Drawings
FIG. 1 is a schematic diagram of the distribution of components of the present invention;
FIG. 2 is a schematic distribution diagram of an oil monitoring module;
in the figure, a 1-oil preheater, a 2-oil monitoring module, a 21-first temperature sensor, a 22-second temperature sensor and a 23-third temperature sensor.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for illustration only and are not intended to limit the present invention.
Referring to fig. 1 and 2, the present invention provides an automatic temperature control fuel preheating system for a railway internal combustion engine, comprising:
a fuel preheater 1 for heating the fuel passing through the inside thereof; the fuel preheater 1 is of an existing structure and is one of the constituent members of an existing engine assembly; the engine assembly comprises a fuel tank, a coarse filter, a fuel preheater 1, a fine filter, an oil injection pump and a diesel engine which are sequentially connected through pipelines;
the oil monitoring module 2 comprises a first temperature sensor 21 arranged at the outlet end of the fuel preheater 1, a second temperature sensor 22 arranged at the outlet of the fuel tank and a third temperature sensor 23 arranged at the outlet of the oil return pipe. The second temperature sensor 22 is used for monitoring the actual temperature mu of the oil discharged from the oil tank 1 The method comprises the steps of carrying out a first treatment on the surface of the The first temperature sensor 21 is used for monitoring the temperature mu of the oil liquid heated by the fuel preheater 1 5 The method comprises the steps of carrying out a first treatment on the surface of the The third temperature sensor 23 obtains the oil return temperature mu in the oil return pipe 4 。
The PLC industrial control system is used for collecting monitoring information of the oil monitoring module 2, carrying out data processing on the monitoring information, converting the monitoring information into regulation and control data, and regulating the heating temperature of the fuel preheater 1 through the regulation and control data; the PLC industrial control system is also used for starting and stopping the fuel preheater 1.
The thermometer is arranged in the cab of the locomotive consist and is used for displaying temperature data monitored by the first temperature sensor 21, the second temperature sensor 22 and the third temperature sensor 23, so that a driver can conveniently and manually regulate the fuel preheater 1.
During the control process of the PLC industrial control system, when the fuel preheater 1 is started to work, the following steps are performedThe second temperature sensor obtains the actual temperature mu of the fuel supplied from the fuel tank 1 The PLC industrial control system controls the actual temperature mu 1 And a first standard temperature mu arranged in the interior of the heat exchanger 2 Comparing; wherein 30 DEG < mu 1 Less than or equal to 40 degrees; when mu 1 When the temperature is in the temperature range, the dynamic viscosity of the oil liquid is kept at 2.01MPaS, and the kinematic viscosity is kept at 2.45mm 2 In this state, the engine burns oil more fully, and the smoke content of the discharged tail gas is about 5.32/RB.
When mu 1 ＜μ 2 When the temperature of the oil liquid does not reach the optimal combustion state, the oil liquid needs to be heated, and the PLC industrial control system controls the starting of the fuel oil preheater 1;
mu, and mu 1 ≥μ 2 And when the temperature of the oil reaches the optimal combustion state, heating is not needed, and the PLC industrial control system controls the fuel preheater 1 to stop or not to start.
Further, when mu 1 ＜μ 2 When the PLC industrial control system controls the fuel preheater 1 to start, the PLC industrial control system obtains a second standard temperature mu arranged in the fuel preheater 3 And the obtained actual temperature mu 1 Comparison is made, wherein μ 3 ＜μ 2 ；
When mu 3 ＜μ 1 ＜μ 2 When the fuel preheating device is in a low-power heating state, the PLC industrial control system controls the fuel preheater 1 to enter a low-power heating state, mu Adding ＝μ 1 +△μ，△μ＝2(μ 2 -μ 1 ) The method comprises the steps of carrying out a first treatment on the surface of the The fuel preheater 1 in the low-power heating state consumes little power and generates a temperature inside slightly higher than the fuel optimum combustion interval (30 ° < μ 1 At a temperature of 40 DEG or less), at which the oil enters the fuel preheater 1 and flows out, is substantially in an optimal combustion zone (since it is considered that the oil is in a flowing state in the fuel preheater 1 and that a certain time is required for the oil to warm up, when the temperature generated inside the fuel preheater 1 is in a state slightly higher than the optimal combustion zone of the fuel, it is ensured that the oil in the flowing state substantially reaches the optimal combustion when flowing out of the fuel preheater 1Interval, hereinafter high power state heating is the same as that of the above
When mu 1 ＜μ 3 When the fuel preheating device is in a high-power heating state, the PLC industrial control system controls the fuel preheater 1 to enter a high-power heating state, mu Adding ＝|arctanμ 1 I (I); in the above heating process, it is ensured that the fuel preheater 1 has a heating threshold value, which is about the rated heating temperature of the fuel preheater 1, so that damage to the apparatus due to excessive temperature is avoided.
Wherein mu Adding The internal heating temperature of the fuel preheater 1 is shown.
Preferably, the third temperature sensor of the present invention obtains the oil return temperature mu in the oil return pipe 4 The second temperature sensor obtains the temperature mu of the oil liquid heated by the fuel preheater 1 5 The PLC industrial control system calculates the oil temperature release efficiency through the following formula and compares the oil temperature release efficiency with a first preset temperature release comparison value mu arranged in the oil temperature release efficiency Ratio of Comparison is performed:
μ put and put ＝μ 5 -μ 4 ；μ Put and put The loss of the temperature of the oil in the oil pipe conveying process is shown;
when mu Put and put ＞μ Ratio of When the PLC industrial control system is used for controlling the fuel oil preheater 1 to keep an original heating state, the state indicates that the loss of the temperature of the oil liquid in the oil pipe conveying process is large, and the fuel oil preheater 1 needs to be ensured to keep a normal working state so as to ensure that the temperature of the oil liquid is maintained in an optimal combustion zone (30 degrees < mu 1 ≤40°)；
When mu Put and put ≤μ Ratio of When the temperature of the internal heating temperature mu of the fuel preheater 1 is corrected again by the PLC industrial control system Adding . The PLC industrial control system heats the internal heating temperature mu of the fuel preheater 1 by the following formula Adding And (3) correcting: mu (mu) Add' s ＝μ Adding X beta; wherein β= (μ) 5 -μ 4 )/μ 4 . The state shows that the loss of the temperature of the oil in the oil pipe conveying process is small, the heating temperature of the fuel preheater 1 can be properly reduced, and the temperature of the oil is ensured to be maintained in an optimal combustion zone (30 degrees less than mu) 1 Less than or equal to 40 degrees), reduces the consumption of energy sources。
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (1)
1. An automatic temperature control fuel preheating system for a railway internal combustion engine, comprising:
a fuel preheater for heating the fuel passing through the inside thereof;
the oil monitoring module comprises a first temperature sensor arranged at the outlet end of the fuel preheater;
the PLC industrial control system is used for collecting monitoring information of the oil monitoring module, carrying out data processing on the monitoring information, converting the monitoring information into regulation and control data, and regulating the heating temperature of the fuel preheater through the regulation and control data; the PLC industrial control system is also used for starting and stopping the fuel oil preheater;
a thermometer for displaying temperature data monitored by the sensor;
the oil monitoring module further comprises a second temperature sensor arranged at the outlet of the oil tank and a third temperature sensor arranged at the oil return pipe;
the second temperature sensor acquires the actual temperature mu of the fuel supplied from the fuel tank when the fuel preheater is started 1 The PLC industrial control system controls the actual temperature mu 1 And a first standard temperature mu arranged in the interior of the heat exchanger 2 Comparing; wherein mu 1 Heating to a temperature of 30 DEG & lt mu 1 ≤40°；
When mu 1 ＜μ 2 When the fuel oil preheater is started, the PLC industrial control system controls the fuel oil preheater to be started;
mu, and mu 1 ≥μ 2 When the fuel oil preheater is stopped, the PLC industrial control system controls the fuel oil preheater to stop;
when mu 1 ＜μ 2 When the PLC industrial control system obtains the second standard temperature mu arranged in the PLC industrial control system 3 And the obtained actual temperature mu 1 Comparison is made, wherein μ 3 ＜μ 2 ；
When mu 3 ＜μ 1 ＜μ 2 When the fuel oil preheater is in a low-power heating state, the PLC industrial control system controls the fuel oil preheater to enter a low-power heating state, mu Adding =μ 1 +△μ，△μ=2（μ 2 -μ 1 ）；
When mu 1 ＜μ 3 When the fuel oil preheating device is in a high-power heating state, the PLC industrial control system controls the fuel oil preheating device to enter a high-power heating state, mu Adding =|arctanμ 1 |；
Wherein mu Adding Indicating the internal heating temperature of the fuel preheater;
the third temperature sensor obtains the oil return temperature mu in the oil return pipe 4 The first temperature sensor obtains the temperature mu of the oil liquid heated by the fuel preheater 5 The PLC industrial control system calculates the oil temperature release efficiency through the following formula and compares the oil temperature release efficiency with a first preset temperature release comparison value mu arranged in the oil temperature release efficiency Ratio of Comparison is performed:
μ put and put =μ 5 -μ 4 ；
When mu Put and put ＞μ Ratio of When the fuel oil preheating device is in a heating state, the PLC industrial control system controls the fuel oil preheating device to keep an original heating state;
when mu Put and put ≤μ Ratio of When the temperature of the internal heating temperature mu of the fuel oil preheater is corrected again by the PLC industrial control system Adding;
the PLC industrial control system heats the internal heating temperature mu of the fuel oil preheater through the following formula Adding And (3) correcting: mu (mu) Add' s =μ Adding ×β；
Wherein β= (μ) 5 -μ 4 ）/μ 4 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310467381.3A CN116557180B (en) | 2023-04-27 | 2023-04-27 | Automatic temperature control fuel preheating system for railway internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310467381.3A CN116557180B (en) | 2023-04-27 | 2023-04-27 | Automatic temperature control fuel preheating system for railway internal combustion engine |
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| Publication Number | Publication Date |
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| CN116557180A CN116557180A (en) | 2023-08-08 |
| CN116557180B true CN116557180B (en) | 2024-04-09 |
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| CN202310467381.3A Active CN116557180B (en) | 2023-04-27 | 2023-04-27 | Automatic temperature control fuel preheating system for railway internal combustion engine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090022294A (en) * | 2007-08-30 | 2009-03-04 | 콘티넨탈 오토모티브 시스템 주식회사 | Apparatus and method for heating pressure controller of cng car |
| DE102008024561A1 (en) * | 2008-05-21 | 2009-11-26 | Karlheinrich Winkelmann | Method for operating internal combustion engine, involves detecting induced signal through electrical load, and starting fuel circulation in low-pressure fuel circuit in response to detected signal |
| CN105840361A (en) * | 2016-05-17 | 2016-08-10 | 内蒙古包钢钢联股份有限公司 | Fuel oil pre-heating system for diesel type automobile |
| DE102021203180A1 (en) * | 2021-03-30 | 2022-10-06 | Psa Automobiles Sa | Fuel filter with integrated heating |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR102018077092A2 (en) * | 2018-12-26 | 2020-07-07 | Robert Bosch Limitada | method of preheating and temperature control of fuel injected into a combustion engine |
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2023
- 2023-04-27 CN CN202310467381.3A patent/CN116557180B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090022294A (en) * | 2007-08-30 | 2009-03-04 | 콘티넨탈 오토모티브 시스템 주식회사 | Apparatus and method for heating pressure controller of cng car |
| DE102008024561A1 (en) * | 2008-05-21 | 2009-11-26 | Karlheinrich Winkelmann | Method for operating internal combustion engine, involves detecting induced signal through electrical load, and starting fuel circulation in low-pressure fuel circuit in response to detected signal |
| CN105840361A (en) * | 2016-05-17 | 2016-08-10 | 内蒙古包钢钢联股份有限公司 | Fuel oil pre-heating system for diesel type automobile |
| DE102021203180A1 (en) * | 2021-03-30 | 2022-10-06 | Psa Automobiles Sa | Fuel filter with integrated heating |
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| CN116557180A (en) | 2023-08-08 |
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